Denso Iridium Spark Plugs IK-20 #5304

Denso plugs are installed on almost every automobile model manufactured in Japan. The iridium used in them has a superior hardness.

Denso Iridium Power spark plugs feature a 0.4mm iridium tipped laser welded fine wire center electrode that reduces required voltage and improves firing performance.

Tapered cut U-Groove ground electrode increases ignitability and decreases quenching.

Machine rolled threads prevent seizing or cross threading during installation and removal.

100% pre-fired to assure the highest quality possible.

Purified alumina powder insulator provides exceptional strength and thermal conductivity.

Five rib insulator prevents flashover.

Copper-glass seal bonds center electrode and insulator for a gas-tight seal.

DENSO patented 360 degree laser welding process: ensuring exceptional quality bond and structural strength with the iridium center electrode.

*Guaranteed Fit - Toyota Altezza/Lexus IS200/300 (1GFE Engine)

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